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Would the hardness of a mineral affect its performance in the streak test?
No, the hardness of a mineral does not affect its performance in the streak test. The streak test is determined by the color of the powder left behind when the mineral is scratched against a ceramic plate, not the hardness of the mineral itself.
Would the hardest of a mineral affect its performance in the streak test?
The hardness of a mineral can influence its performance in the streak test, but it is not the sole determining factor. Harder minerals may scratch the streak plate, preventing a streak from being produced, while softer minerals can leave a streak more easily. However, the mineral's composition and structure also play significant roles in determining its streak color and consistency. Therefore, while hardness can affect the outcome, it is not the only factor at play.
What is the difference between a minerals hardness and streak?
Mineral hardness measures a mineral's resistance to scratching, while streak is the color of the powdered form of a mineral. Hardness is determined by the Mohs scale, while streak is identified by rubbing the mineral across a porcelain plate to see the color left behind.
Would a mineral of a hardness of 9 leave a streak Why or why not?
A mineral with a hardness of 9, such as corundum, would not leave a streak on a streak plate because it is harder than the plate itself, which typically has a hardness of about 6. A harder mineral cannot scratch a softer material, so it wouldn't produce a streak. Streak is determined by the powder left behind when a mineral is scraped against a harder surface, and since the mineral is too hard, it cannot do so.
A mineral can be scratched by a streak plate but not by a masonry nail.?
If a mineral can be scratched by a streak plate but not by a masonry nail, it indicates that the mineral has a hardness less than that of the streak plate but greater than that of the masonry nail. The Mohs hardness scale helps to categorize minerals based on their scratch resistance, with the streak plate typically having a hardness of about 6. The masonry nail, being softer, has a hardness lower than 6, allowing the mineral to resist scratching by it.
Would the hardness of a mineral affect its performance in the streak test?
No, the hardness of a mineral does not affect its performance in the streak test. The streak test is determined by the color of the powder left behind when the mineral is scratched against a ceramic plate, not the hardness of the mineral itself.
Would the hardness of a mineral affect its performance in the streak test Why or why not?
No. Streak color is distinct of mineral hardness. They are separate properties.
What is the difference between streak and hardness?
A minerals hardness is its relative ability to scratch or be scratched by other minerals. Diamond, for instance, can scratch all other minerals because of its hardness. Streak is the color of the mineral when powdered. This is usually accomplished by the streak test (swiping the mineral across an unglazed porcelain surface) which reveals a mineral's streak color, which may differ from the color of the specimen being tested.
What is the difference between a minerals hardness and streak?
Mineral hardness measures a mineral's resistance to scratching, while streak is the color of the powdered form of a mineral. Hardness is determined by the Mohs scale, while streak is identified by rubbing the mineral across a porcelain plate to see the color left behind.
If a mineral doesn't make a streak is it not a mineral?
Minerals with a hardness greater than around 7 on the Mohs hardness scale will not leave a streak on a standard unglazed porcelain streak plate. They will instead scratch and powder the streak plate.
What is difference between hardness and streak?
Hardness is a mineral's resistance to being scratched, while streak is the color of the powder a mineral leaves behind when scratched on a porcelain streak plate. Hardness is measured on the Mohs scale from 1 (softest) to 10 (hardest), while streak is a diagnostic property used to identify minerals.
What mineral will scratch glass but not a streak plate?
Diamond is the only mineral that can scratch glass but not leave a streak on a streak plate. Glass has a hardness of around 5.5 on the Mohs scale, while a streak plate typically has a hardness of around 6.5. Diamond, with a hardness of 10, is able to scratch glass but not the streak plate.
What is the hardness of a porcelain streak plate?
Porcelain has a Mohs hardness of approximately 6-7, making it a relatively hard material. This hardness allows porcelain to be used as a streak plate in mineral testing to determine the color of a mineral's powder when scratched against it.
How do you test a mineral for hardness?
Well. You can do many things like use the Mohs Hardness Scale or determine the hardness by the streak.
What is Cobalts mineral streak color?
Yes. Its Mohs hardness is in the range of 5, and minerals (or metals, as is the case here) will streak up to a hardness of about 7. For a quick review of what streak is and how it originated, use the link to the Wikipedia article.
If a mineral has no streak is it metallic?
When identifying minerals, having no streak is a property of hardness. A streak plate has a hardness of ~7(Moh's Scale). Thus any mineral having a hardness greater than 7 will have no streak.Metallic is the description of luster. Or the general appearance of a mineral surface in reflected light.If you were refering to the mineral having metal elements in it, streak is actually very useful for identifying them. Many minerals that are composed of non-metals have a white streak which can appear to be no streak, however there are also many minerals with no streak which are composed of non-metallic minerals (Diamond).
Why do you need to know hardness and streak to identify minerals?
Any identifying characteristics help when you are dealing with an unknown mineral. You have to use all of the clues at your disposal to make a proper identification. Streak and hardness are 2 important tests.
